# BALLINFIT vs Studio13 by Sasja

The clearest difference is update cadence: Studio13 by Sasja at every 4 months against BALLINFIT's every 12 months. BALLINFIT's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BALLINFIT ships an update every 12 months, Studio13 by Sasja every 4 months. The most recent releases landed on September 10, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | BALLINFIT | Studio13 by Sasja |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 months** |
| Size | 195 MB | 40 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ballinfit Gym B.V.](https://appshunter.io/developer/1738430484) | [Trainin](https://appshunter.io/developer/1732652497) |

## What reviewers say

### BALLINFIT

[App page](https://appshunter.io/ios/app/ballinfit/id6480184342)

**Features:** macOS Compatibility

**In-app purchases:** none


### Studio13 by Sasja

[App page](https://appshunter.io/ios/app/studio13-by-sasja/id6759001828)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BALLINFIT free?

BALLINFIT is free to download, with no in-app purchases.

### Is Studio13 by Sasja free?

Studio13 by Sasja is free to download, with no in-app purchases.

### Do BALLINFIT or Studio13 by Sasja have ads?

Neither BALLINFIT nor Studio13 by Sasja shows ads.

### Which is updated more often, BALLINFIT or Studio13 by Sasja?

BALLINFIT ships an update every 12 months, and Studio13 by Sasja every 4 months. Most recently, BALLINFIT was updated on September 10, 2026 and Studio13 by Sasja on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*